Rapco Bulk 2 Conductor Shielded Mic Cable (Sold By the Foot) "Conductor Gauge: (2)24 gauge Shield: Bare annealed copper serve Shield Coverage: 95% Jacket: Matte PVC O.D. 0.230"" Capacitance: 21 pF/ft. @ 1 kHz Characteristic Impedance: 70I NOMINAL D.C. Resistance @ 20C: 23I/1000'" Shield: Bare annealed copper serve Shield Coverage: 95% Jacket: Matte PVC "O.D. .23"""